buddybar on buddypress.org- how can I reproduce on my site?

I very much like the buddybar on this site (buddypress.org), the way that it has the notifications on the right, followed my the user’s profile name, avatar, then a dropdown with a bunch of incredibly handy links to buddypress components. My buddybar does not have these features (the notification looks plain, is positioned over to the left, and I don’t have the user info/links.)
If these are custom modifications, any suggestions on where to look, or how to go about repeating them?